Bluetooth module sound quality. |
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Shortrope
Young Croc Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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Posted: 29 August 2015 at 1:34pm |
I've a Sure 4.0 Bluetooth module in the control box on my Boombike.
I never use it as the sound quality is so bad compared to hard wiring. Is this normal?? Or is there a way of improving things? |
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My Tinnitus is coming along nicely!!
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Swedgin
Registered User Joined: 16 August 2015 Location: Deadwood Status: Offline Points: 20 |
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Do you have a good DAC between the bluetooth module and the amp? Audio that's transmitted via bluetooth is lossy (so a bit loss here) and digital. If you don't have a decent DAC it could be you lose a lot of detail in sound quality. EDIT: your module has a sample rate of 94kHz, this should be enough (cd has 44,1kHz) but I don't see the resolution. Best is one of 16bit (or 24bit if you want to go high-end) so you don't lose much information. Edited by Swedgin - 29 August 2015 at 2:49pm |
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Shortrope
Young Croc Joined: 08 July 2013 Location: Ireland Status: Offline Points: 1232 |
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I'm just taking an audio signal off the BT modules own RCA outlet into the Amplfier.
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My Tinnitus is coming along nicely!!
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Swedgin
Registered User Joined: 16 August 2015 Location: Deadwood Status: Offline Points: 20 |
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I did a quick research on bluetooth audio and came to conclusion that your module should have bluetooth 4.0 and aptx codec support for the best result, and it does.
I'm sorry but I can't help you further due to lack in knowledge. My guess is a poor resolution but I don't find the resolution of the module.
Edited by Swedgin - 01 September 2015 at 3:50pm |
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gustavoppires
New Member Joined: 10 January 2017 Status: Offline Points: 1 |
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Hi.
I have the same module and did some blind A-B'ing with a high quality dac and could not spot any loss of quality. There's a catch though: The module's output clips at the highest BT volume settings (playing from my Samsung Galaxy S5, it clips in the top 70%+ volume settings). Did you try lowering it? Cheers!
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davey t
Young Croc Joined: 11 March 2004 Location: Bristol UK Status: Offline Points: 1428 |
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Yea the module clips easily. As long as you are not overdriving it, you should get really good sound quality. We've used them and they're fine.
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Minirig portable soundsystem movement
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